Diagnostic Procedure
PWM DIMMING OUTPUT FAILURE SYMPTOM CHART
| TEST | ACTION | APPLICABILITY |
|---|---|---|
| 1 |
NOTE:
This DTC will set if the Panel Lamps Driver circuit is open to all dimmed, components. Turn the ignition off.Disconnect the Instrument Cluster C1 harness connector.Using the wiring diagram/schematic as a guide, inspect the wiring and connectors related to the Panel Lamps Driver circuit for an open circuit condition.Was a Panel Lamps Driver circuit open condition found?Yes --> Repair the Panel Lamps Driver circuit for an open.Perform BODY VERIFICATION TEST - VER 1
.No --> Go To 2 |
All |
| 2 | Turn the ignition off. Disconnect the Instrument Cluster C1 harness connector. Measure the voltage between the Panel Lamps Driver circuit and ground. Is there any voltage present? Yes --> Repair the Panel Lamps Driver circuit for a short to voltage. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 3 |
All |
| 3 | Turn the ignition on, with the DRBIII®, erase DTCs. Turn the ignition off. Using the wiring diagram/schematic as a guide, disconnect one of the dimmed components. Turn the ignition on, with the DRBIII®, read DTCs. If this DTC resets, repeat the above procedure with each dimmed component on the Panel Lamps Driver circuit. Was a dimmed component found to be shorted, allowing the DTC to be cleared? Yes --> Replace the appropriate dimmed component in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 4 |
All |
| 4 | Turn the ignition off. Disconnect the Instrument Cluster C1 harness connector. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors related to the Panel Lamps Driver circuit for a short to ground condition. Was a Panel Lamps Driver circuit short to ground condition found? Yes --> Repair the Panel Lamps Driver circuit for a short to ground. Perform BODY VERIFICATION TEST - VER 1 . No --> Replace the Instrument Cluster in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 . |
All |